2019424660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{20353}}^1$

素因数の和:20425

約数の個数: 72

約数和(自身を含む): 4775292648

約数和(自身を除く): 2755867988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 164, 205, 220, 242, 410, 451, 484, 605, 820, 902, 1210, 1804, 2255, 2420, 4510, 4961, 9020, 9922, 19844, 20353, 24805, 40706, 49610, 81412, 99220, 101765, 203530, 223883, 407060, 447766, 834473, 895532, 1119415, 1668946, 2238830, 2462713, 3337892, 4172365, 4477660, 4925426, 8344730, 9179203, 9850852, 12313565, 16689460, 18358406, 24627130, 36716812, 45896015, 49254260, 91792030, 100971233, 183584060, 201942466, 403884932, 504856165, 1009712330, 2019424660]

約数ペア:

[(1, 2019424660), (2, 1009712330), (4, 504856165), (5, 403884932), (10, 201942466), (11, 183584060), (20, 100971233), (22, 91792030), (41, 49254260), (44, 45896015), (55, 36716812), (82, 24627130), (110, 18358406), (121, 16689460), (164, 12313565), (205, 9850852), (220, 9179203), (242, 8344730), (410, 4925426), (451, 4477660), (484, 4172365), (605, 3337892), (820, 2462713), (902, 2238830), (1210, 1668946), (1804, 1119415), (2255, 895532), (2420, 834473), (4510, 447766), (4961, 407060), (9020, 223883), (9922, 203530), (19844, 101765), (20353, 99220), (24805, 81412), (40706, 49610)]